code: def belongs_test_data(self):
      data = [
          dict(point=gs.array([-1.0, 0.3]), expected=False),
      ]
      return self.generate_tests(data)
  
imports: import geomstats.backend
  from geomstats.test.data import TestData
  from ...test_geometry.data.base import LevelSetTestData
  from ...test_geometry.data.riemannian_metric import RiemannianMetricTestData
  from .base import InformationManifoldMixinTestData
label_desc: Use image node_id 1 for calling the MultinomialDistributions2TestData obj's underlying member method code with example usage: obj.belongs_test_data() and returns: self